Smith displaced Tendulkar for the top spot in the ICC ODI Batsman rankings. Ponting, M Yousuf and Hayden round up the top 5. The age old saying of nothing beats experience is demonstrated in the ODI batsman rankings.

Vettori is on top of the ODI rankings for bowlers with Bracken, Bond, Vaas and Mills completing the top 5. 3 of the top 5 ODI ranked bowlers are Kiwis.

Australia and New Zealand are definitely dominating the ICC ODI rankings. The rankings are definitely a good way of determining current form - though I would like to see some revisions to the rankings. This will have to be a later post when I have constructed exactly what I would like to see changed :-)

I will leave by saying that ICC should also publish their ICC ODI Umpire Rankings! :-)

If a player misses a Test, the player loses 1% of their ratings points. A player who misses an ODI loses 0.5% of their ratings points.

The ratings take into account the number of runs scored in the match. So, if, eg, a team is all out 100, and one bowler takes 3/36, that doesn't get rewarded as highly as taking 3/36 when a team makes 400.

Taking the wicket of a better batsman (as judged by their ratings points) earns more points than taking the wicket of a worse batsman.

Those are the two main "contexts" that you would consider when doing a ratings system.

The only other one that you might be thinking of is, say, the batsman who rescues his team from 8/100 to 250, or the bowler who causes a collapse when it looks like his team will lose.

But if he bowled earlier in the innings, then he should have taken wickets earlier. And if he didn't bowl earlier in the innings, then he got great figures anyway.

I think there is perhaps a case for rewarding batsmen who 'rescue' a team.

And remember that you can't use "intangibles" when designing a ratings system - you have to be able to quantify them!

Q, as I understand things (and I can't find the details on the ICC website), the ICC ratings work by considering a player's entire career, but with the importance decaying exponentially as you go back in time. I'm not sure what the decay constant is, but I'm guessing they'd make it so that most of the player's rating comes from the last 18 or 24 months. So a lean run over the last couple of months will hurt Ponting's rating a little bit, but not too much.

If the decay constant were such that Ponting fell out of the top ten based on 10 bad innings following an extended run of high scoring, then you'd see a huge amount of variability in the rankings, and people wouldn't pay much attention to them.

I found a website that says that the decay constant is 4% per match. I don't know how reliable that figure is, but if it's true, then Ponting's last 10 matches contribute about one third of his ratings points. The 27 games before that also contribute one third, and over that period he averaged almost 80. So you can see how he is still in the top three.

Yeah that makes sense David. Ponting definitely deserves to be there, i was just wondering how much of the recent performance effects the rating since he done quite badly as compared to before. An average drop of 60!

I agree that people wont pay much attention if people drop out of the top 10 too quickly.

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